A coffee tree grows within a specific environment. Temperature, rainfall, light, humidity and the swing between day and night all affect how the tree grows and how its fruit develops.

By the time the beans are harvested, those conditions have already left part of their mark on the raw material. Still, the relationship between climate and flavor is far from a simple straight line.

Climate Acts Before the Bean Is Ever Roasted

The flavor a drinker eventually experiences starts with what happens on the tree.

A tree needs the right water, light and temperature to grow. The cherry develops over a certain span of time before reaching ripeness.

If weather conditions shift, the tree's growth rate and the cherry's development can shift too. Those fluctuations affect the raw material the grower ends up harvesting.

So when we say climate affects flavor, it should be understood as an influence that works through the process of the bean forming.

Temperature Is Not Just a Number

Temperature affects how fast a tree grows. The gap between day and night temperatures also creates different conditions for the tree.

But no single temperature figure can explain coffee quality on its own.

A tree responds to the whole environment across an entire season. The weather at each stage, the amount of water, and other conditions all act on the cherry's development together.

That's why even the same growing region can still see differences from one year to the next.

Rain Affects Both the Tree and the Work After Harvest

Rainfall amount and timing are tied to how a tree grows, but water's influence doesn't stop there.

Rain during harvest season can make picking and drying more difficult. If beans aren't dried properly after harvest, quality can suffer.

So climate can affect coffee through several different paths: from how the tree grows, all the way to how people handle the fruit after picking.

This Is Why the Season Matters So Much

Coffee from two different harvests isn't necessarily the same.

A year with favorable weather can produce different raw material than a year with more volatility. Rainfall, temperature and the timing of ripening can all vary.

For a brand, this is why it's important to track each lot of raw material rather than treating every harvest as identical.

For An Khương, wanting to preserve 'Original Flavor' also means accepting the natural variation that comes with every season.

How does a roaster respond to the influence of climate?

A roaster can't change weather that has already happened.

They can only work with the beans that season produced.

If the beans show different characteristics, the roaster needs to reassess and may need to adjust how heat is applied. Trial roasts, notes and repeated tasting help them find a better-suited way to develop the raw material.

This is the connecting point between agriculture and the craft of roasting.

Climate sets the conditions. The bean carries the results of those conditions. The roaster transforms the bean with heat. The drinker, in the end, experiences the finished product.

You Should Not Attribute Every Flavor Note to Climate Alone

When someone tastes a coffee with a distinctive aroma, they sometimes want to trace it back to one single cause.

But flavor is the result of many factors.

Variety, origin, elevation, soil, farming practices, ripeness, processing, drying, storage and roasting can all play a role.

Climate sits within that larger system.

Saying a particular flavor note comes 'only from climate' overlooks far too many other links in the chain.

Climate and the Story of a Place

When An Khương talks about sourcing coffee from the Lâm Viên Plateau, climate is a natural part of that land's story.

But the point isn't to attach a flavor promise to the climate itself. The point is to understand how that environment has shaped the tree and the harvest.

A piece of land with its own particular conditions produces raw material with its own particular traits. People then continue to select, process and roast in order to develop those traits.

That's how the story of a place makes its way into a cup of coffee in a more grounded way.

Can a drinker actually taste the climate?

You can't drink a cup of coffee and point precisely to 'this is the effect of temperature, this is the effect of rainfall.'

The senses just don't work that way, breaking things apart so cleanly.

A drinker only receives the final result of the whole process. To understand it more deeply, sensory experience has to be combined with information about origin, variety, season, processing and roasting.

That's also part of what makes drinking coffee genuinely interesting: behind a single aroma can sit an entire chain of natural conditions and human work.

Climate Does Not Decide Alone

The relationship between climate and coffee flavor should be understood as a chain of influence.

Climate affects the tree. The tree develops its fruit and beans under those conditions. The grower harvests and processes the raw material. The beans are dried, stored and passed on to the roaster. Roasting continues to transform the bean.

The final flavor is the result of that entire chain.

For An Khương, 'Original Flavor' doesn't mean searching for one single factor to explain coffee. It's a way of respecting the bean's whole journey, from the environment it grew in to the moment its flavor finally appears in the cup.